Talk Mode
This device is for connection to TNV3 network voltages only. Use this unit only on standard analog
Telecom networks.
With the main mode switch in the TALK position and connected to a suitable telephone line, the unit
will go off-hook. Dialing and speech are now possible.
Flash
While off-hook, the Flash key is enabled. This key generates a timed line break, which simulates a hook
flash to activate special features of a PBX or central office (Figure 2).
The flash duration is user-selectable via the Setup mode as 100 ms, 270 ms, or the default of 600 ms.
The symbol
is present on the bottom line of the display during Flash operation and for 2 seconds
afterward.
Off-Line Dialing and Automatic Redial of Last CID Number
Digits entered by hand or received by calling line ID in Monitor mode are dialed automatically upon
switching to TALK. Any displayed number can be cleared by pressing and holding MUTE for 1 second.
Short presses of MUTE act as a backspace, allowing errors to be corrected before switching to TALK to
dial.
Pause
The dual function LNR/Pause key inserts an inter-digit delay of 3 seconds between digits dialed. The
pause digit is displayed as "–" (minus sign) on the LCD and is stored in memory. Note that if this were
the first key pressed, this would recall and immediately dial LNR (see "Memory Functions").
Pulse Dialing Option
To make a call using pulse dialing, press the Pulse key to select Pulse mode. Then either dial or recall
from memory the number to be called. The symbol
Press the Pulse key again to revert to Tone mode. The dialing mode is also changeable from Pulse to
Tone while dialing by pushing the Pulse,
stored and shown as
(Figure 3).
Current Measurement
While the TM-700 is off-hook, the line current is displayed along with the polarity.
Over Current Protection
When the TM-700 is off-hook, it protects against line current over 125 mA by automatically applying a
current limit. If the condition is maintained for more than about half a second, the unit goes on-hook, a
warning message is displayed, and a warning sound is produced until the unit is disconnected from the
line or switched off (Figure 4).
8
*
or # keys. Such mid-call transitions of dialing mode are
in the stored digit sequence, indicating the requested change to Tone mode
Figure 2.
is displayed on the bottom line of the display.
Figure 3.